[ https://issues.apache.org/jira/browse/PIG-617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai closed PIG-617. -------------------------- > Using SUM with basic type fails > ------------------------------- > > Key: PIG-617 > URL: https://issues.apache.org/jira/browse/PIG-617 > Project: Pig > Issue Type: Bug > Components: impl > Affects Versions: 0.2.0 > Reporter: Santhosh Srinivasan > Fix For: 0.7.0 > > > SUM is an aggregate function that expects a bag as an argument. When basic > types are used as arguments to SUM, Pig fails during run time. The > typechecker should catch this error and fail earlier. > An example is given below: > {code} > grunt> a = load 'one' as (i: int); > grunt> b = foreach a generate SUM(i); > grunt> dump b; > 2009-01-12 14:11:47,595 [main] INFO > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher > - 0% complete > 2009-01-12 14:12:12,617 [main] ERROR > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher > - Map reduce job failed > 2009-01-12 14:12:12,618 [main] ERROR > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher > - Job failed! > 2009-01-12 14:12:12,623 [main] ERROR > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.Launcher - Error > message from task (map) > task_200812151518_9683_m_000000java.lang.ClassCastException: > java.lang.Integer cannot be cast to org.apache.pig.data.DataBag > 2009-01-12 14:12:12,623 [main] ERROR > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.Launcher - Error > message from task (map) > task_200812151518_9683_m_000000java.lang.ClassCastException: > java.lang.Integer cannot be cast to org.apache.pig.data.DataBag > at org.apache.pig.builtin.IntSum.sum(IntSum.java:141) > at org.apache.pig.builtin.IntSum.exec(IntSum.java:41) > at org.apache.pig.builtin.IntSum.exec(IntSum.java:36) > at > org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:185) > at > org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:247) > at > org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.processPlan(POForEach.java:265) > at > org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:197) > at > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:187) > at > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:175) > at > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapOnly$Map.map(PigMapOnly.java:65) > at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227) > at > org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207) > ... > 2009-01-12 14:12:12,629 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR > 1066: Unable to open iterator for alias b > 2009-01-12 14:12:12,629 [main] ERROR org.apache.pig.tools.grunt.Grunt - > org.apache.pig.impl.logicalLayer.FrontendException: Unable to open iterator > for alias b > at org.apache.pig.PigServer.openIterator(PigServer.java:425) > at > org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:271) > at > org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:178) > at > org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:84) > at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:72) > at org.apache.pig.Main.main(Main.java:302) > Caused by: java.io.IOException: Job terminated with anomalous status FAILED > at org.apache.pig.PigServer.openIterator(PigServer.java:419) > ... 5 more > {code} -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.